π0and η meson production in proton-proton collisions at √s=8 TeV

Shreyasi Acharya,J. Adam,D. Adamová,Jonatan Adolfsson,M. M. Aggarwal,G. Aglieri Rinella,Michelangelo Agnello,N. Agrawal,Z. Ahammed,N. Ahmad,Sang Un Ahn,S. Aiola,A. Akindinov,M.Al－Turany,Sk Noor Alam,Jose Luis Bazo Alba,Danilo Silva De Albuquerque,D. Aleksandrov,Bruno Alessandro,R Alfaro-Molina,A. Alici,A. Alkin,J. Alme,T. Alt,Lucas Altenkamper,I. Altsybeev,C. Alves Garcia Prado,C. Andrei,Dimitra Andreou,Harry Arthur Andrews,A. Andronic,V. Anguelov,C. Anson,T. Antičić,F. Antinori,P. Antonioli,Rafay Anwar,L. Aphecetche,H. Appelshäuser,S. Arcelli,R. Arnaldi,O. W. Arnold,I. C. Arsene,M. Arslandok,B. Audurier,A. Augustinus,R. Averbeck,M. D. Azmi,A. Badalà,Y. W. Baek,S. Bagnasco,R. Bailhache,R. Bala,A. Baldisseri,M. Ball,R. C. Baral,A. M. Barbano,R. Barbera,F. Barile,Luca Barioglio,G. G. Barnaföldi,L. S. Barnby,V. Barret,P. Bartalini,K. Barth,E. Bartsch,M. Basile,N. Bastid,S. Basu,G. Batigne,B. Batyunya,P. C. Batzing,I. G. Bearden,H. Beck,C. Bedda,N. K. Behera,I. Belikov,F. Bellini,H. Bello Martinez,R. Bellwied,Lucina Gabriela Espinoza Beltran,V. Belyaev,G. Bencedi,S. Beole,A. Bercuci,Y. Berdnikov,D. Berenyi,R. A. Bertens,D Berzano,L. Betev,A. Bhasin,I. R. Bhat,A. K. Bhati,B. Bhattacharjee,J. Bhom,Antonio Bianchi,L. Bianchi,N. Bianchi,C. Bianchin,J. Bielcik,J. Bielcikova,A. Bilandzic,G. Biro,R. Biswas,S. Biswas,J. T. Blair,D. Blau,C. Blume,G. Boca,F. Bock,A. Bogdanov,L. Boldizsar,M. Bombara,G. Bonomi,M. Bonora,J. Book,H. Borel,A. Borissov,M. Borri,E. Botta,C. Bourjau,Lars Bratrud,P. Braun-Munzinger,M. Bregant,T. A. Broker,M. Broz,E. Brucken,E. Bruna,G. Bruno,D. Budnikov,H. Buesching,S. Bufalino,P. Buhler,P. Buncic,O. Busch,Z. Buthelezi,J. Butt,J. T. Buxton,J. Cabala,D. Caffarri,H. Caines,A. Caliva,E. Calvo Villar,P. Camerini,Aaron Allan Capon,F. Carena,W. Carena,F. Carnesecchi,J. Castillo Castellanos,A. Castro,E. A. R. Casula,C. Ceballos Sanchez,P. Cerello,Sinjini Chandra,B. Chang,S. Chapeland,M. Chartier,S. Chattopadhyay,A. Chauvin,C. Cheshkov,B. Cheynis,V. Chibante Barroso,D. D. Chinellato,S. Cho,P. Chochula,M. Chojnacki,S. Choudhury,Tasnuva Chowdhury,P. Christakoglou,C. H. Christensen,P. Christiansen,T. Chujo,S. U. Chung,C. Cicalo,L. Cifarelli,F. Cindolo,J. Cleymans,F. Colamaria,D. Colella,A. Collu,M. Colocci,Matteo Concas,G. Conesa-Balbastre,Z. Conesa del Valle,M. E. Connors,J. G. Contreras,T. M. Cormier,Y. Corrales Morales,I. Cortes-Maldonado,P. Cortese,M. R. Cosentino,F. Costa,S. Costanza,J. Crkovská,P. Crochet,E. Cuautle,L. Cunqueiro,T. Dahms,A. Dainese,Meike Charlotte Danisch,A. Danu,D. Das,I. Das,S. Das,A. Dash,S. Dash,S. De,A. De Caro,G. de Cataldo,C. de Conti,J. de Cuveland,A. De Falco,D. De Gruttola,N. De Marco,S. De Pasquale,R. D. De Souza,Hermann Franz Degenhardt,A. Deisting,A. Deloff,C. Deplano,P. Dhankher,D. Di Bari,A. Di Mauro,P. Di Nezza,B. Di Ruzza,T. Dietel,P. Dillenseger,R. Divià,Ã. . Djuvsland,A. Dobrin,D. Domenicis Gimenez,B. Dönigus,O. Dordic,L. V. R. Doremalen,A. K. Dubey,A. Dubla,L. Ducroux,Ashpreet Kaur Duggal,Mallick Dukhishyam,P. Dupieux,R. J. Ehlers,D. Elia,E. Endress,H. Engel,E. Epple,B. Erazmus,F. Erhardt,B. Espagnon,S. Esumi,Giulio Eulisse,J. Eum,D. Evans,S. Evdokimov,L. Fabbietti,J. Faivre,A. Fantoni,M. Fasel,L. Feldkamp,A. Feliciello,G. Feofilov,A. Fernandez-Tellez,A. Ferretti,A. Festanti,V. J. G. Feuillard,J. Figiel,M. A. S. Figueredo,S. Filchagin,D. Finogeev,F. M. Fionda,M Floris,S. Foertsch,P. Foka,S. Fokin,E. Fragiacomo,A. Francescon,Audrey Francisco,U. Frankenfeld,Gabriele Gaetano Fronze,U. Fuchs,C. Furget,A. Furs,M. Fusco Girard,J. J. Gaardhøje,M. Gagliardi,A. M. Gago,K. Gajdosova,M. Gallio,Carlos Duarte Galvan,P. Ganoti,C. Garabatos,E. Garcia-Solis,K. Garg,C. Gargiulo,P. Gasik,E. F. Gauger,M. Germain,Jhuma Ghosh,P. Ghosh,S. Ghosh,P. Gianotti,P. Giubellino,P. Giubilato,E. Gladysz-Dziadus,P. Glässel,D. M. Goméz Coral,A. Gomez Ramirez,A. S. Gonzalez,P. González-Zamora,S. Gorbunov,L. Görlich,S. Gotovac,V. Grabski,L. K. Graczykowski,K. L. Graham,L. 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Martinez Pedreira,S. Masciocchi,M. Masera,A. Masoni,Erwann Masson,A. Mastroserio,Andreas Michael Mathis,Paula Fernanda Toledo Matuoka,A. Matyja,C. Mayer,J. Mazer,M. Mazzilli,M. A. Mazzoni,F. Meddi,Y. Melikyan,A. Menchaca-Rocha,E. Meninno,J. Mercado Pérez,M. Meres,S. Mhlanga,Y. Miake,M. M. Mieskolainen,D. L. Mihaylov,K. Mikhaylov,J. Milosevic,A. Mischke,A. N. Mishra,D. Miśkowiec,J. Mitra,C. M. Mitu,N. Mohammadi,B. Mohanty,M. Mohisin Khan,D. A. Moreira De Godoy,L. A. P. Moreno,S. Moretto,A. Morreale,A. Morsch,V. Muccifora,E. Mudnic,D. Mühlheim,S. Muhuri,M. Mukherjee,J. D. Mulligan,M. G. Munhoz,Konstantin Munning,R. H. Munzer,H. Murakami,S. Murray,L. Musa,J. Musinsky,Corey James Myers,Julian Wojciech Myrcha,D. Nag,B. Naik,R. Nair,B. K. Nandi,R. Nania,E. Nappi,Amrendra Narayan,M. U. Naru,H. Natal da Luz,C. Nattrass,Sebastian Rosado Navarro,K. Nayak,R. Nayak,T. K. Nayak,S. Nazarenko,A. Nedosekin,R. A. Negrao De Oliveira,L. Nellen,Simon Voigt Nesbo,F. Ng,M. Nicassio,M. Niculescu,J. 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π0and η meson production in proton-proton collisions at √s=8 TeV

2018

Author(s): Acharya, S; Adam, J; Adamova, D; Adolfsson, J; Aggarwal, MM; Aglieri Rinella, G; Agnello, M; Agrawal, N; Ahammed, Z; Ahmad, N; Ahn, SU; Aiola, S; Akindinov, A; Al-Turany, M; Alam, SN; Alba, JLB; Albuquerque, DSD; Aleksandrov, D; Alessandro, B; Alfaro Molina, R; Alici, A; Alkin, A; Alme, J; Alt, T; Altenkamper, L; Altsybeev, I; Prado, CAG; Andrei, C; Andreou, D; Andrews, HA; Andronic, A; Anguelov, V; Anson, C; Anticic, T; Antinori, F; Antonioli, P; Anwar, R; Aphecetche, L; Appelshauser, H; Arcelli, S; Arnaldi, R; Arnold, OW; Arsene, IC; Arslandok, M; Audurier, B; Augustinus, A; Averbeck, R; Azmi, MD; Badala, A; Baek, YW; Bagnasco, S; Bailhache, R; Bala, R; Baldisseri, A; Ball, M; Baral, RC; Barbano, AM; Barbera, R; Barile, F; Barioglio, L; Barnafoldi, GG; Barnby, LS; Barret, V; Bartalini, P; Barth, K; Bartsch, E; Basile, M; Bastid, N; Basu, S; Batigne, G; Batyunya, B; Batzing, PC; Bearden, IG; Beck, H; Bedda, C; Behera, NK; Belikov, I; Bellini, F; Bello Martinez, H; Bellwied, R; Beltran, LGE; Belyaev, V; Bencedi, G; Beole, S; Bercuci, A | Abstract: © 2018, CERN for the benefit of the ALICE collaboration. An invariant differential cross section measurement of inclusive π0and η meson production at mid-rapidity in pp collisions at s=8 TeV was carried out by the ALICE experiment at the LHC. The spectra of π0and η mesons were measured in transverse momentum ranges of 0.33.5 GeV/c. However, a deviation from this empirical scaling rule is observed for transverse momenta below pTl3.5 GeV/c in the η/ π0ratio with a significance of 6.2 σ.

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